Window lock



Sept. 18 1923.,

' 3,468,367 E. G. LANCE WINDOW LOCK Filed May 13 1921 Lnuenm" /3 2J `1 ErnsLan f5 Figi a@ Patented Sept. 18, V1923.4

I narran. starr. s

ERNST-G. LANCE, or DETROIT, IvwiioHieAN,

Y or LAKEY omessa, MICHIGAN. w

i mais? rarest carica.;

ASSIGNOR ONE-HALF TO OTTO C. RUSS,

Vwiiinncw noon.

i Appiicafioiiaied May 13, i921. semi No. 469,081'.

y To all whom t may concern Be it knownlthaltfy I, ERNST Gr. LANGE, a

` citizen of the United States-of America, re-

tain new and useful Improvements in Window Locks ;V and 1 do hereby declare the following to bc a. full, clear7 and eXact description of the invention, such as will 4enable others skilled in the art to which Vit appertains to make and use the-same.

This invention relates to a lock for windows. It is a primary object and purpose: of the present invent-ion to make a lock adapted for application to* windows of the sliding type, wherebyfthe sashes of the window Amay be locked'together against movement inone direction, so as-to insure against the window being opened any farther'4 than it has been `o-pened, and arlsolock thegsashes iii-:either Y open or closed position, the locking.' or unlocking of the sashes and oftlie'sainefto or from thefwindow casing being simultaneous and operable through manual actuation of a single operatingmeans. IA further object of the invention is to provide a window lock of thischaracter which is very simple in its Y structure, making it easy to -manufacture. at

low cost, aiidwhich is particularly easy to inst-all, no tools other than ascrew driverV being- 'required -Many other objects and purposes than those stated will appear fully and in detail, together with the novelconstructions and arrangements of partsfor attaining the same, as understanding of the invention is had from the following description, taken in connection with the accom'- V panying drawing, in which,

Fig. 1 is a fragmentary perspective view showing Iny invention ofwindow lock appliedto a window.

YFig. 2 is a; horizontal section through the locking member which. is vapplied to the lower sash of the windowV, the operating,

. Y mechanism appearing in plan view.

, l Fig. 3v isV a vertical sectiontaken substan-E tially oii thefbroken line 3-.-3, of` Fig. 2, and. Fig. 4 is a view similar toot-hat shownninr Fig. 2, showing the operatingmechanismiin a. different position.

Like reference The invention isI adapted foriapplication to1 windows having-sliding sashes mounted for vertical movements in a window casing.

bar 5 of metal is secured, having ends 6g? which arebentpinwardly to provide feet which are attached tothe side 4 Vby screws,

the main body of the. bar between said feet being spaced a short distance from the front side of the side 4 of the sash. At regularly.

` spaced apart intervals in the length of the bar 5 Vthe metal is cut at three sides and pressed inwardly at an angle, as indicated at 7 making in effect a ratchet with spaced apartteeth.. I -A i,

On the window casing 3 asecond bar S of flat kmetal Vis located,4 it having endportions 9 and an intermediate portion 10 set inwardly through which screws pass to attachthe bar toithecasing, the other main..` portions of the b'ar'being set outward from thecasing a short distance. as shown; -ln

thelength of the bar 8, a plurality of openings 11 are made spaced at regular intervals equal to the spacing apart of the ratchet de-. pressions in the bar. 5 attached to the upper window sash.

101i' v the upper frame `member 2"L of the lower sash 2, the lock is attached. In structure, this lock includes a base plate 12 which is adapted to liev against the upper side of member 2, and which at one end is formed into a sleeve 13A from which a section 14 de- .pends, adapted to-lie against the inner side of the. member 2a. Screws are passed, through the plate 12 and the depending section 14 to attach the lock to the member 2, A locking pin 15 is slidably mounted in the sleeve 15 and at lone en d is Vadapted to enter A any ofthe openings 1l inthe bar 8.

Plate 12at `the end thereof nearest they upper sash has a narrow extension vfrom each side edgeof which an ear 16 is turned upwardly, andi aflockingdog. 17 is pivotally mounted on and between said earsyits tippen,V

end being formed so as to engage with any of the ratchet depressions in bar formed by the inwardly pressed parts 7. The dog 17 is normally spring pressed toward the 4 Y p y bar 5 so as to engage with the saine by al haracters refer to likev parts in the differentzligures ofthedia-wing.

leaf spring, 1.8. which is securely attached to the under side of the top of a covering housthereto by ltheV pin 20, it being evident that the sides of this housing may have projectimY Ving .19 lying over the plate 12 and attached ing tangs to pass through openings in plate Vno parts to break or 12 to position the same on the base plate.

A lever 21 is pivotally mounted between its ends at 22 on the base 12, one end there of being turned upwardly at 23 so as to come directly back of the lower end oi-l the locking dog 17. The opposite end is divided and forked, as indicated at 24, and a pin 25 attached to the pin 15 and extending upwardly 1 therefrom through a curvedV slot 26 in the upper side of the sleeve 13 passes between the two parts of' the forked end, as shown. An operating arm 27 is turned upwardly from one side of the lever 21 and extends upwardly through a slot 28 in the upper side of the housing 19 whereby the lever 21 may be turned to different positionsby hand.

7 With the lever 21 in the position shown in F ig. 4, the locking pin 15 is drawn into the sleeve 13 andthe lower end of the locking dog 17 is engaged by the upturned lip 23 to thereby move'the upper end of the dog away -from the ratchet bar 5, the sashes of the window both being tree for sliding movement. When the lever is moved to its other position asshownA in Fig. 2, the locking pin 15 is projected outwardly so that itmay 'enter an opening 11 in bar 8, and which opening it shall be is a matter of choice with the operator, it being evident that the lower'sash may be locked in closed position or at a number of positions in which the lower-sash is more or less raised or elevated above its lower position. At the saine time, the lip 23 is moved away from the dog-17 whereupon it is pressed by spring '18 so as to bear at its upper end against the bar 7 and enter any 'ratchet depression therein to which said upper end comes. The operation oi the locking pin 15 to locking position and the freeing 'of the dog 17 so that it may serve its locking function are simultaneous and it is likewise evident that both sashes of the window are simultaneously 'reed for Inoveinent at one and the same time. The operation of the lever 21 controlling both locking members is through manual 'actuation of the operating member 27 where it extend-s above the top 'of the housing 19.

The construction is relatively simple; is easily manufactured from sheet metal, has Otherwise get iit, `of

Order, andwith it either or both for uw,

window sashes may be locked either in closed Position or in a number oi' partlyopen positions from which neither can be moved to open them wider, though the upper sash may be moved upwardly ii it is partly lowered. Thisivprecludes the unauthorized entrance from the outside of anyone, as the window cannot, under'A be opened mor'e widely;I Of 'course the bars 5.and 8 may be longer if desired and a larger number of positionsl for lthe window sashes any circumstances,

1. A lock forwindows, comprising a basef plate formed at one end with a sleeve and at its other end with a pairof'upturned ears,

a. dog pivotally mounted between said ears,V

a housing positioned over and secured to the base plate, a spring on the housing acting on the dog, a locking 4pin slidably mounted in the sleeve, a pin attached tothe lockingpin and 'extending upwardlythrough a slot in the sleeve, a lever pivotally mounted on the upper side of the base and formed at one end with a fork to receive the last mentioned ypin and at its opposite endwith an upturned lip adapted tofcome directly against the lower end of the dog in one position of the lever, and an operating handle extending upwardly from the lever through a slot in thehousing.

2. .A lock for windows, comprising a base plate formed Vat one end with a sleeve, a dog pivotally mounted at the opposite end of the plate to turn on a. `horizontal airis and extend-V` ing abovethe plate, Va housing located over and connected to the base plate, a spring secured to the housing and acting on the dog to force its upper endl outwardly,a locking pin slidably mounted in" the sleeve, a lever pivotally mountedon the upper side of the base, means at one 'end 'of the lever having connection with the pin for moving the pin longitudinally on pivotal movement oit' the lever, means at the opposite end of the lever to Vact on the dog on V'pivotal movement `of the lever 'and move its upper end inwardly against the force of the spring, andan operating handle extending upwardly from the lever through a slot in said housing, substantially as describedI Y 3. A lock for windows, comprising a base plate having a transverse sleeve formed at one end, a pin sli'dably mounted in said sleeve, a leverpivotally mounted between its 'ends on the plate, interengaging' means between one endof the lever'and the pin, said other end of the lever Vhaving la 0portion off-set from the longitudinal center line of the lever and terminating in an upturn'ed ear, a dogir pivotally mounted to turn on a horizontal axis at the opposite Vend of the plate against the lower end of which said ear bears, spring means normally turning the upper end of the dg outwardly, and means neuer G. n LANCE. 

